我想用反射來訪問電話API的一些未發佈的功能。目前,我在實例化serviceManager
對象時遇到問題,需要將「電話」服務作爲活頁夾來使用,然後我可以使用它來實例化撥打電話,結束呼叫等所需的電話對象...反思訪問高級電話功能
當前撥打電話時
serviceManagerObject = tempInterfaceMethod.invoke(null, new Object[] { new Binder() });
它返回一個nullPointerException。我相信這必須做與創建一個新的活頁夾,而不是發送相應的粘合劑(這我不清楚其中的一個爲宜)
public void placeReflectedCall() throws ClassNotFoundException,
SecurityException, NoSuchMethodException, IllegalArgumentException,
IllegalAccessException, InvocationTargetException,
InstantiationException {
String serviceManagerName = "android.os.IServiceManager";
String serviceManagerNativeName = "android.os.ServiceManagerNative";
String telephonyName = "com.android.internal.telephony.ITelephony";
Class telephonyClass;
Class telephonyStubClass;
Class serviceManagerClass;
Class serviceManagerStubClass;
Class serviceManagerNativeClass;
Class serviceManagerNativeStubClass;
Method telephonyCall;
Method telephonyEndCall;
Method telephonyAnswerCall;
Method getDefault;
Method[] temps;
Constructor[] serviceManagerConstructor;
// Method getService;
Object telephonyObject;
Object serviceManagerObject;
String number = "1111111111";
telephonyClass = Class.forName(telephonyName);
telephonyStubClass = telephonyClass.getClasses()[0];
serviceManagerClass = Class.forName(serviceManagerName);
serviceManagerNativeClass = Class.forName(serviceManagerNativeName);
Method getService = // getDefaults[29];
serviceManagerClass.getMethod("getService", String.class);
Method tempInterfaceMethod = serviceManagerNativeClass.getMethod(
"asInterface", IBinder.class);
// this does not work
serviceManagerObject = tempInterfaceMethod.invoke(null,
new Object[] { new Binder() });
IBinder retbinder = (IBinder) getService.invoke(serviceManagerObject,
"phone");
Method serviceMethod = telephonyStubClass.getMethod("asInterface",
IBinder.class);
telephonyObject = serviceMethod
.invoke(null, new Object[] { retbinder });
telephonyCall = telephonyClass.getMethod("call", String.class);
telephonyEndCall = telephonyClass.getMethod("endCall");
telephonyAnswerCall = telephonyClass.getMethod("answerRingingCall");
telephonyCall.invoke(telephonyObject, number);
}
「目前我有麻煩實例化一個對象的ServiceManager」是你給有關錯誤或問題的唯一信息。你給我們的代碼。現在告訴我們它在做什麼或不做什麼是意外的,以及如何知道它不能正常工作。 – 2010-01-04 18:14:54